Denmark (100.0), Sweden (99.9), United Kingdom (96.8), and Finland (96.6) rank as having the best education systems in the world.
Top-ranked countries typically combine strong early childhood education, well-trained teachers, and more equitable school systems, all of which enable stronger and more consistent student outcomes on international benchmarks.
Cambodia (1.0), El Salvador (1.0), Myanmar (0.8), and Honduras (0.6) rank as having the worst education systems in the world.
Lower-ranked countries often face challenges such as limited access to schooling, lower literacy rates, underfunded education systems, and barriers to consistent student attendance and completion.
The United States ranks 12th globally in education, placing it behind several countries with stronger overall system performance.
The U.S. performs well in higher education quality and research output. However, it lags in overall system efficiency, cost, and consistency in K–12 outcomes compared to top-ranked countries.
Differences between top- and bottom-ranked education systems are driven largely by gaps in funding, literacy rates, and school enrollment, especially at the primary and secondary levels.